SINGAPORE, Oct 12 (Reuters) - Sentiment for medium and heavy sweet grades remained depressed on Friday as prompt Bach Ho cargoes were offloaded in the Asia-Pacific crude market after an outage at Vietnam's refinery. * TRADE - Glencore sold an October Bach Ho cargo at between $3 and $4 a barrel to dated Brent on a cost-and-freight (C&F) basis. Traders said this could be just enough to cover Brent backwardation and demurrage costs if the cargo was bought at parity to $1 a barrel premium to dated Brent on a free-on-board (FOB) basis. Arcadia and Petrosummit are also offering at least one Bach Ho cargo each for October and November delivery, bought from PV Oil in private deals. * SUPPLY - Sweet crude and condensate exports from Australia, Papua New Guinea and East Timor will be at 20 cargoes in December, one more than the previous month, as one cargo was rolled over, traders said. Light sweet crude and condensate cargoes are expected to be marketed first as firm naphtha and gasoline cracks support values of these grades although this could be offset by a stronger Brent benchmark. November Brent's premium to Dubai DUB-EFS-1M surged above $4 this week to its highest in two months as tensions between Turkey and Syria and lower output at North Sea oilfields supported the European marker. December Brent/Dubai Exchange of Futures for Swaps (EFS) is valued at $3.75. Regional condensate supply is lower than usual for a second month due to maintenance at North West Shelf (NWS) fields. For heavy grades, supply will increase in December as one Enfield cargo has been rolled over from November while one more Van Gogh cargo will be exported. * TENDERS - Indonesia's Petral bought two cargoes of sweet crude for December delivery and is seeking more, trade sources said. The company bought 740,000 barrels of Russian ESPO crude and 600,000 barrels of Cossack, they said. Chevron sold the Cossack cargo at a discount of about $1.50 a barrel to dated Brent on a free-on-board basis while CNOOC supplied the ESPO cargo at an unknown price. These could not be confirmed with the companies. The company did not buy any West African crude due to high offers in the tender, but it could engage in private talks with sellers to buy more cargoes. - Russia's Rosneft sold one cargo of December Sokol crude at a steady premium compared with the last tender, industry sources said. Rosneft sold the 700,000-barrel cargo for Dec. 20-29 loading to a South Korean refiner at about $7.50-$8 per barrel above Dubai quotes, the sources said. * MARKET NEWS - Oil major BP Plc has secured U.S. government permission to ship U.S. crude oil to Canada, and Royal Dutch Shell has applied for an export license, as rising production in the world's top oil consumer upends global energy flows. - The world could see a gradual easing of oil prices over the next five years due to sluggish economic growth and increasing energy efficiency as production rises steeply in Iraq and north America, the West's energy watchdog said. CRUDE Price Prev Change NOV Brent 114.94 115.14 -0.20 NOV Brent/Dubai EFS DUB-EFS-1M 4.20 4.40 -0.20 PRODUCT CRACKS NOV fuel oil crack -9.37 -8.64 -0.73 NOV gasoil crack 19.12 19.48 -0.36 NOV naphtha crack -8.16 -7.58 -0.58 COMPLEX REFINERY MARGINS Today 9.16 Last 5 days 10.12 Last 365 days 7.38

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